browning



(No Model.) 3 Sheets-Sheet 1. J. BROWNING.

THIMBLB BMBOSSING MAGHINB.

No. 407,637. Patented July 23, 1889.

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(No Model.) 3 Sheets-Sheet 2. J. BROWNING.

THIMBLB BMBOSSING MAGHINB. No. 407,637. Patented July 23, 1889.

(No Model.) 1 3 Sheets-Sheet 3.

J. BROWNING.

THIMBLE BMBOSSING MACHINE.

No. 407,637. Patented July 2 3, 1889.

UNITED STATES PATENT OEEICE.

JOSEPH BROWNING, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR vTO JOHN F. SIMONS, FREDERICK M. SIMONS, AND EDIVIN S. SIMONS, ALL

OF SAME PLACE.

THHVIBLE-EIVIBOSSINGY MACHINE.

SPECIFICATION forming part of Letters Patent No. 407,637, dated July 23, 1889.

Application filed May 14, 1889.

To a/ZZ whom it may concern: Be it known that I, JOSEPH BROWNING, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Embossing Machines, of which the following is a specification.

The object of my invention is to construct a machine for embossing` the base portions ofthimbles.

The machine is so constructed that the thimble is clutched to a vrevolving spindle, and an embossing-wheel is pressed against the surface of the thimble to be embossed; and the main object of my invention is to so construct the mechanism that the surplus material will be distributed on the thimble at a position previously determined by the cutting of the embossing-wheel.

In the accompanying drawings, Figure l is a side view of my improved embossing-machine. Fig. 2 is a sectional plan on the line l 2, Fig. l. Fig. 3 is a sectional plan on the line 3 fl, Fig. l. Fig. 4 is a vertical section on the line 5 6, Fig. l. Fig. 5 is a vertical section on the line 7 8, Fig. l.. Figs. (3 and 7 are diagrams showing the different positions of the embossing-wheel in respect to the thimble. Fig. 8 is a view of the thimble be- 'fore being embossed, and Fig. 9 is a view of the iinished thimble. Y

A is the bed-plate of the machine, mounted on suitable legs a a and adapted to ways b b. On the bed is a slide B, carrying the embossing-roller D.

C is a vertical tubular shaft adapted to suitable bearings in the base A. This shaft carries the spindle c, on which the thimble to be embossed is placed. The slide can be moved toward or from the shaft O, in order that the embossing-wheel may be moved into or out of engagement with the thimble. The slide is adjustable toward the thimble by a set-screw E, having a head e, provided with a series of graduations, and a finger e on the frame indicates the position of the graduations, so that if, for instance, the machine is to be set at 50, the screw can be turned until Serial No. 310,720. (No model.)

comes directly opposite the iinger e', and

so on.

To withdraw the slide from the thimble sufficiently to remove the same, I provide au arm B', pivoted at b to the slide. This arm passes between the end of the set-screw e and the slide, and the set-screw bears against this arm, so that when it is desired to move the slide back without altering the adjustment of the set-screw the arm is raised clear of the set-screw and the slide pushed back. Vhen the thimble is removed and another placed in position, the slide is moved up in contact with the thimble and the arm placed, as before, between the slide and set-screw.

- Carried on the slide B is ablock F, one end of which can be raised or lowered by means of set-screws f, when it becomes necessary to adjust the embossing-wheel to different angles in respect to a vertical line through the thimv ble. The set-screws bear against the lbottom of an opening in the slide B, and by turning the screws the block can be raised or lowered; but usually the bloek and slide are made in one piece.

Passing through block and through an opening in the slide B, as well as in the base sleeve is secured to the block F, and is also .7.5` l. A, is a sleeve G, as shown in Fig. 5.' This secured to a rino G( on the under side of the bed-plate by means of a 'set-screw g. This block and, ring tend to steady thesleeve. The sleeve may be an extension of the slide B, in which case the block and ring are dispensed with. Passing' through the sleeve is a 'shaft H, carrying at its upper end the embossinglwheel D, and at its lower end a bevel-wheel H, preferably keyed to it.

` The details of construction of the embossing-wheel will be described hereinafter.

The bevel-wheel H meshes with a bevelpinion H2, mounted on a vertical stud H3, secured to the block G. Above the pinion H2, and secured thereto, is a second pinion I, which meshes with an intermediate wheel I', mounted on a lever J pivoted at j to the hollow shaft O, as shown in Fig. 4, and also connected to a stud H3 through the medium of a link J' The lever can be adjusted on a segment J2, so as to accommodate the different positions of the block B, as it will be understood that if the block is moved back or away from the thimble the lever must also be moved back so as to keep the wheel I' in gear with both pinions I and I2 at all times.

The pinion I2 is keyed to the lower portion of the hollow shaft C, and, as described, meshes with the wheel I' on the lever J. The mechanism is so timed that on the turning of the shaft lil by the handle K the shaft C will turn at a proportionate speed, so that the periphery of the thimble carried bythe shaft will travel at the same speed that the periphery of the wheel will travel. The lower portion of the shaft C rests on a set-screw L, on turning which the shaft can be raised or lowered.

In order to effect the accurate turning of the thimble, I place a clamp M over the head of the thimble, said clamp being connected to a spindle M', earryin g a pinion m. The spindle M passes up into an orifice in the end of a set-screw N, having a hand-wheel N', on turning which the spindle can be forced downward and the clamp pressed hard onto the thimble-blank.

Vhen it is desired to release the thimble, the hand-wheel N is turned in the opposite direction and the thimble released, after which it can be removed and another thimble placed in position.

The clamp is removable from the spindle M', so that the thimble can be readily removed from its spindle c. The pinion nl, on the spindle M' gears with a wheel m' on a vertical shaft l?, adapted to bearings in the frame. O11 the lower portion of the shaft P is a wheel p, which gears with the pinion I2 on the hollow shaft C, so that both spindles e and M' are geared together and will turn at a uniform speed, and consequently the thimble-blank to be embossed will turn therewith, thus insuring accurate embossing.

I place back of the thimble a block Q, which is recessed on its end to fit around the clamp M. This block can be adjusted toward and from the clamp by means of a set-screw q, passing through a standardA, which carries the set-screw N. The object of this block is to take the thrust of the embossing-tool upon the thimble.

The lever J is adjustable in guideson a seg ment J2 and can be set in different positions.

The handled lever K for turning the embossing-wheel is pivoted to the shaft II and has a lug 7c, which rests in a slot in an arm CZ of the embossing-wheel, so that on turning the lever K the embossing-wheel will likewise be turned.

The embossing-wheel is made up of three rings (Z', (Z2, and (Z3. The ring (Z3 is mounted on the shaft Il', and its outer surface is eccen trie in. respect to its inner surface. The ring (Z2 iits snugly to the ring (Z3, and its outer surface is eccentric in respect to its inner surface, and the embossing-ring (Z fits snugly over the ring (Z2, but its inner and outer surfaces are concentric, so that between the shaft II and the embossing-ring (Z there are t-wo eccentrics.

The object of having the two ececntrics is to so adjust the ring that a given point on its periphery can be adjusted to act on the thimbleblank at a certain time, as in rolling the impression of the embossing-wheel on the thimble a portion of the metal will be carried in advance of the wheel, and if this is not passed over and taken up an unsightly lump is produced, which would condemn the thimble and render it unsalable; but by adjusting the two eccentries the wheel will gradually back oif from the thimble, thus passing over the material that would otherwise be carried in advance of the wheel and return to the starting-point, as shown in the View, Figs. and 7, producing' a perfectly-formed thimble, requiring no further finishing.

In order to secure the rings CZ', (Z2, and ZS together, I provide a clamp .5',which bears against the arm Z on one end, and bears against the ring (Z5 at the opposite end, and a screw s secures the clamp S lirmly in position, as shown in Figs. l and 2.

I do notlimitmyself to embossing thimbles, as it will be understood that other articles may be embossed on this machine wi th a slight modification of the parts.

I claim as my inventionl. The combination, in an embossing-machine, of the thimble-carrying spindle, the embossing-wheel having a concentric ring on which the iigure is cut, and two eccentric rings, one inside the other, by which the position of the embossing-ring is varied, substantiallj` as described.

2. The combination, in an embossing-machine, of the vertical shaft, in which is mounted the thimble-carryin g spindle, with a shaft earrying an embossing-wheel, and a handle therefor, said shaft being geared to the thimbleshaft, substantially as and for the purpose described.

3. The combination, in an embossing-machine, of the plate A, bearings therein, a thimble-sh aft mounted in said bed-plate, with a slide l5, carrying` theembossing-tool, and a set-screw E for adjusting the slide B toward or from the thimble, with an arm B', carried by the slide and adapted to pass between the end of the set-screw and the slide, substantially as described.

4. The combination of the bed-plate A, the vertical thimble-carrying shaft C, with a slide B, adapted to ways on said frame, and a block in said slide carrying the embossing-tool, with mechanism for raising and lowering said block, by which. the angle of the tool is varied, substantially as described.

5. The combination, in an embossing-machine, of the embossing-tool, a vertical thimblecarrying shaft having a pinion at its lower end, with a second shaft having a gear- IOO ITO

wheel meshing with said pinion, and having at its upper end a second Wheel meshing with a pinion on a spindle carrying the clamp for the head of the thimble, with mechanism for turning the shaft, so that when the shaft C turns the clamp for the head of the thimble will likewise be turned, substantially as speci- 'ed.

6. The combination, in a thimble-embossing machine, of the thimble-carrying shaft and a clamp for the upper portion of the thimble, with the embossing-tool and a block Q, adapted to take the strain of the embossing-tool, substantially as described.

7. The combination, in an embossing-machine, of the bed-plate A, the slide B, a sleeve G, carried by said slide, with a shaft H, adapted to said sleeve and carrying at its upper end the embossing-tool and handle,.and having at its lower end a bevel-wheel meshing with a bevel-'pinion which is geared to the thimble-carrying shaft, substantially as described. l

S. The combination of the embossing-ring d', having an arm cl, with the rings d2 and d3, aclamp s, and a set-screw s', by which the rings cl2 and d3 are clamped to the ring cl, substantially as described.

9. The combination, in an embossing-machine, of the embossing-wheel, its shaft and gear-wheel, with a thimble-carrying shaft, its pinion, an intermediate pinion, andintermediate wheel, said wheel being carried by a lever pivoted to the thimble-carryin g shaft, but connected to the intermediate pinion, so that on the movement of the embossing-wheel toward or from the thimble the lever J will be moved, substantially as described.'

l0. The combination, in athimble-embossing machine, of the hollow shaft C and spindle ctherein, carrying the thimble to be embossed, with a clamp M, detachable from the spindle M', so that the thimble and clamp can be dctached from the spindles, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

JOSEPH BROVNING.

Witnesses: f

HENRY I-IoWsoN, HARRY SMITH. 

